Gas-generator



(-NoModeL) A. C. ERSKINE. v

GAS GENERATOR.

No. 508,001.v Patented Nov. 7, 1893;

2-2 of Fig. 1.

' UNITED STATES PATENT OFFICE.

ABNER o. ERSKINE, or BOWLING GREEN, omo.

GAS-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 508,001, dated November '7, 1893.

Application filed J' une 19, 1893- Serial No.478,124. (No model.)

To all whom it may concern:

.Be it known that I, ABNER C. ERSKINE, a c ltizen of the United States, residing at Bowling Green, in the county of Wood and State of 0h10, have invented a new and useful Gas- Generator, of which the following is a specification.

My invention relates to a hydrocarbon burner or gas generating apparatus for use in connection'with burners for cooking and heating stoves, &c.l, the object in view being to pro- V1de a simple and efficient construction in which the parts are so disposed as to reduce the danger of explosion to a minimum and insure a complete combustion of the fuel.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claim.

In the drawings: Figure 1 is a plan view of a burner provided with gas-generating apparatus embodying my invention. Fig. 2 is a longitudinal section of the same upon the line Fig. 3 is an end View. Fig. 4 1s a transverse section on the line 4-4 of Fig. l.

Similar numerals of reference'indicate corresponding parts in the several figures of the drawings.

1 designates a burner pan, in which is arranged, in proximity to its bottom and parallel therewith, a generator pipe 2, which enters the pan by passing over the front end thereof, at which point it is provided with an elbow 8. The generator pipe descends parallel with the front Side of the pan to a point near the bottom thereof and below the plane of the upper edges, thence extends longitudinally parallel with the side of the pan, across the same at its rear end, and returns to the front parallel with the other side. This completes the outer loop or coil of the pipe within which, and in the same plane therewith, is arranged a smaller loop or coil 4, the interval between the adjacent sides of the arms of the inner loop being slightly greater than 'the diameterof the generator pipe. A series of air-inlet tubes are arranged vertically at the center of the bottom of the pan in a series which is `parallel with the sides of the interlocked loops of the4 generator pipe,whereby they extend up between the adjacent sides of the arms of the is connected at one end to the reservoir'7, and

at the other end to the outer arm of the elbow of the generator pipe. This supply pipe or feeder is provided, at 8, with a valve or cutoff of the ordinary or any preferred construction, and at 9 with a check Valve to prevent the return pressure of the oil, such check valve being arranged in an elbow of the supply'pipe or feeder.

10 represents an index valve, carrying an index l1, traveling over a dial 12, whereby the operator is enabled to gage the amount of fuel which is fed to the generator.

Connected to the inner ond of the generator pipe, or to the end of the free arm of the inner loop, is a reduced conductor pipe 1,3, which extends beyond the front wall of the pan and is provided at its extremity with a rearwardlyextendingconical reducer 14, which is tted axially in the front end of the horizontallydisposed burner tube 15, whereby the vapor is projected the entire length of the burner tube. per side with a series of burner openings or perforations 16, which are arranged outvof alignment and upon a zigzag line, whereby they are located alternately near opposite sides of the tube, as shown clearly in Fig. 1. The free end of the burner tube is fitted with a cap 17, which is removable to give access to the interior of the tube. The burner tube is arranged above the plane of the generator pipe and above the plane of the upper edge of the pan, the conductor pipe 13 being provided with an elbow 18, to bring said pipe and the reducer to the plane'of the burner tube.

The supply pipe is tapped in front of the index valve by an initial feed pipel19,which extends into the pan and is provided with a cutoff 20.

This being the construction of my improved apparatus, the operation thereof is as follows: The index valve being closed to prevent the fuel from owing into the generator, the valve The burner tube is provided in its up- IOO soepel 8 is opened and a small quantity of fuel is allowed to flow through the initial feed pipe 19, into the pan, the supply being checked before the level of the surface of the fuel reaches the upper ends of the air-inlet tubes. This oil is now ignited and allowed to burn to heat the generator, and after a suiiicien t" time has elapsed the index valve is turned to admit fuel to the generator. The oil is vaporized in its passage through the generator pipes, and is introduced into the burner tube in a reduced or condensed form. The gas is ignited as it leaves the burner tube.

From the above description it will be seen that the generator is located below the level of the burner tube, and hence the excessive heating of the generator pipes is avoided and the fuel is vaporized without the risk of explosion attending an apparatus in which the generator `is above or in close proximity to the burner. Furthermore, the initial heating of the generator pipe, owing to the arrangement of the latter` ina common plane and in proximity tothe bottom of the pan, may be accomplished` with a minimum expenditure of,oii.`

A` further advantage of the construction describedresides in the arrangement of the air-inlet tubes directly beneath the burner tubes andbetween the arms of` the inneryloop of the generatorpipe, whereby the air is heated as it rises and hence does not chill the burner.

Various changes in the form, proportion, and the'minor details of construction may bef resorted to without departing from the principle or sacrificing any of the advantages ot'` this invention.

Having described the invention, what is claimed is- A hydrocarbon gas generator and burner having an igniting pan provided at its longitudinal center with a series of air inlet tubes arranged verticaily,with thei rterminals above the plane of the bottom ot' the pan, a generator disposed within the pan below the plane of its upper edge, and consisting of a series of horizontal connected parallel sided loops, the sides of which are arranged in a common plane and are parallel with the seriesof inlet tubes, a horizontal burner tube, provided in its upper side with apertures, and arranged parallel with and vertically above the series of inlet tubes, and above the plane ot the generator, a conductor connected toone end ofthe generator pipe and` provided with; a conical `reducer which is fitted axially in the endof the burner tube whereby vapor is projected the entire length of the latter,.and a supply pipe connectedto-the other-endiof thegencr ator pipe and provided with.suitahlecontroh ling valvesanda connectedtube to supply oil to the igniting paznsubstantially asspecified.

In testimony that Il claim the foregoing as my owniI have hereto affixed my signature in the presence of` twowitnesses.`

ABNER C. ERSKINE.

Witnesses:

B. L. ABBOTT, FRANK A. REID. 

